Expandable Swim Cap with Pleated Concavity and Draw Cord Seal
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Solution Overview
Problem
Existing swim caps fail to provide a secure, stable, and comfortable water-tight seal for thick, curly, long, kinky, and voluminous hair types, often leading to water exposure and discomfort during swimming and water activities due to inadequate sizing, material properties, and design flaws that compromise fit and aesthetics.
Innovation Solution
A water-tight expandable swim cap with an elongated concavity and flexible pleats, an elastic ribbed perimeter band with grooved channels, and a draw cord sleeve system that adjusts for secure fit and decorative elements, accommodating various hair and head dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If standard latex and silicone adult swim caps are used, then the material is soft and easy to manufacture, but the tear strength, tensile strength, and puncture resistance are low
Solution Approach 1:
The patent employs composite material construction by combining multiple layers of fabric (including mesh panels) with waterproof coating materials to create a swim cap that achieves high tear strength, tensile strength, and puncture resistance while maintaining flexibility and ease of manufacture. The multi-layer composite structure distributes stress and prevents single-point failures.
2Reliability
If swim cap perimeters with straight edges are positioned over the ears to achieve water-tight seal, then water protection is improved, but the appearance becomes alien and uncomfortable
Solution Approach 1:
The patent replaces straight edges with curved, rounded perimeter edges that follow the natural contours of the head and ears. This curved geometry maintains water-tight sealing capability while eliminating the alien appearance and discomfort associated with sharp straight edges, improving both aesthetics and wearer comfort.
3Stability of the object's composition
If chin straps are added to provide security of fit, then fit stability is improved, but comfort, aesthetics, and style are compromised
Solution Approach 1:
The patent extracts and eliminates the chin strap component entirely, achieving fit stability through alternative means such as an optimized perimeter band design with elastic materials and adjustable closure systems that provide secure fit without the need for visible chin straps, thereby maintaining comfort and aesthetics.
4Adaptability or versatility
If domed concavities with soft Shore A durometers are used for long hair, then hair accommodation is improved, but the cap flops around and migrates during vigorous movement
Solution Approach 1:
The patent applies different material properties to different regions of the swim cap: softer materials in areas contacting hair for comfort and accommodation, and firmer, more stable materials in the perimeter band and closure areas to prevent flopping and migration during vigorous movement. This localized differentiation of material properties resolves the contradiction between hair accommodation and position stability.
5Stability of the object's composition
If domed concavities with hard Shore D durometers are used for long hair, then structural stability is improved, but the cap does not conform to the hair and head
Solution Approach 1:
The patent uses hard Shore D durometer materials strategically in the perimeter band and structural support areas to maintain structural stability, while employing softer, more compliant materials in the domed concavity areas that contact the hair and head, enabling conformity and comfort without sacrificing overall structural integrity.
6Adaptability or versatility
If multiple chambers, tubes, straps, and pouches are added to swim caps, then functionality is improved, but the design becomes complicated, confusing, and inconvenient
Solution Approach 1:
The patent integrates multiple functions into unified components rather than adding separate chambers, tubes, straps, and pouches. For example, the perimeter band simultaneously provides water-tight sealing, adjustment capability, and structural support, eliminating the need for multiple separate elements and reducing overall design complexity while maintaining versatility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a comfortable, secure, and adjustable water-tight fit that prevents water exposure, accommodates diverse hair types, and allows for decorative customization, ensuring a stable and streamlined profile during water activities.
Implementation Method 1
an elastic ribbed perimeter band with grooved channels that establishes and maintains contact with a wearer's skin below the hair line
Implementation Method 2
elongated swim cap concavity with flexible pleats that expands and contracts
Implementation Method 3
a draw cord that cinches to secure the swim cap around a wearer's head
Data Source
AI summary
One or more embodiments of an elongated swim cap concavity (11a) having expandable walls (11) with flexible pleats (11b) above a draw cord sleeve (13) or (17) containing a draw cord (14) with knotted draw cord ends (15) and attached draw cord accessories (18) extending from draw cord sleeve openings (16) at the back and above an elastic ribbed perimeter band (12) with a plurality of grooved channels with ear notches (12a). These aspects provide a swim cap that accommodates various hair types, particularly thick, curly, long, kinky, coarse, voluminous and/or high-maintenance hair and/or chemically treated hair and/or braids, rolled locks or dreadlocks to establish and maintain a water-tight seal, a secure and stable fit, and a streamlined profile. Aesthetic possibilities are provided with visibility of and unobstructed access to the ears. Other embodiments are described and shown.